22401238999 has 4 divisors (see below), whose sum is σ = 23375205936. Its totient is φ = 21427272064.

The previous prime is 22401238991. The next prime is 22401239009. The reversal of 22401238999 is 99983210422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22401238999 - 2³ = 22401238991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401238991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486983434 + ... + 486983479.

It is an arithmetic number, because the mean of its divisors is an integer number (5843801484).

Almost surely, 2^22401238999 is an apocalyptic number.

22401238999 is a deficient number, since it is larger than the sum of its proper divisors (973966937).

22401238999 is an equidigital number, since it uses as much as digits as its factorization.

22401238999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973966936.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 22401238999 in words is "twenty-two billion, four hundred one million, two hundred thirty-eight thousand, nine hundred ninety-nine".